Large-capacity vacuum eutectic furnace cavity assembly

Abstract

The utility model relates to a high-capacity vacuum eutectic furnace cavity assembly, which comprises a cavity enclosed by an outer shell, a substrate arranged in the cavity, a heating mechanism used for heating the substrate and a cooling mechanism used for cooling the substrate, and the heating mechanism comprises a plurality of groups of heating lamp tubes arranged at intervals along the length or width direction of the cavity. The sheath is sleeved outside the heating lamp tube, and the sheath and the heating lamp tube penetrate through the outer shell and are connected to the outer shell through a first connecting piece; the cooling mechanism comprises a plurality of cooling pipes parallel to the heating lamp tubes, and the cooling pipes penetrate through the outer shell and are connected to the outer shell through second connecting pieces. According to the high-capacity vacuum eutectic furnace cavity assembly provided by the utility model, the connecting structure of the heating lamp tube and the cooling tube is arranged outside the cavity, so that the heating and cooling space in the cavity can be relatively increased, the heat conduction or cold conduction effect is improved, and meanwhile, the area of the substrate is correspondingly increased, so that the welding productivity can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum welding, in particular to a large-capacity vacuum eutectic furnace cavity assembly. Background Technique

[0002] In high-end research fields or high-end manufacturing fields such as the aerospace industry, the welding requirements for products are relatively high. Vacuum eutectic furnaces are usually used for welding operations, which can ensure that the welding materials work in a vacuum environment, a nitrogen environment or a formic acid environment. At the same time, the materials and the shell can be heated and cooled evenly, which has a good effect on improving the accuracy of the welding points and ensuring the accuracy of the product performance. At present, the heating and cooling mechanisms of vacuum eutectic furnaces are usually arranged inside the vacuum cavity, and the heating and cooling mechanisms are fixed by setting support structures inside the cavity. However, setting support structures inside the cavity will undoubtedly affect the space of the heating and cooling mechanisms and further reduce the usable area of the carrier plate, thereby affecting the welding productivity. Content of the Utility Model

[0003] The purpose of the utility model is to provide a large-capacity vacuum eutectic furnace cavity assembly, which can solve the technical problems mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A large-capacity vacuum eutectic furnace cavity assembly, including a cavity formed by enclosing an outer shell, a substrate arranged inside the cavity, a heating mechanism for heating the substrate, and a cooling mechanism for cooling the substrate. The heating mechanism includes multiple groups of heating lamps arranged at intervals along the length or width direction of the cavity, and a sheath sleeved outside the heating lamps. The sheath and the heating lamps pass through the outer shell and are connected to the outer shell through a first connector; the cooling mechanism includes several cooling pipes parallel to the heating lamps. The cooling pipes pass through the outer shell and are connected to the outer shell through a second connector.

[0005] As a preferred solution, several installation channels matching the cooling pipes are arranged inside the substrate. The cooling pipes are arranged inside the installation channels. By arranging the cooling pipes in a fully enclosed manner through the installation channels, all the cold energy of the cooling pipes can be absorbed by the substrate, and the deformation of the cooling pipes can also be prevented.

[0006] As a preferred solution, the cooling mechanism further includes a connecting pipeline for connecting the cooling pipes. The connecting pipeline and the cooling pipes are conducted to form a cooling path.

[0007] As a preferred solution, the cooling path is set to two groups for uniform cooling effect.

[0008] As a preferred solution, several arc-shaped grooves matching the cooling pipes are arranged at the bottom of the substrate. The cooling pipes are arranged in the arc-shaped grooves. This structure is convenient for disassembly and assembly.

[0009] As a preferred solution, the cooling mechanism further includes a support rib plate abutted against the lower part of the cooling pipe, and both ends of the support rib plate are connected to the outer shell. The support of the support rib plate can ensure high-fitting contact between the cooling pipe and the substrate.

[0010] As a preferred solution, the first connecting member includes a sealed connecting seat for connecting the sheath to the outer shell and a support clip for supporting the infrared lamp tube, and the support clip is connected to the sealed connecting seat.

[0011] As a preferred solution, the sheath is made of quartz material.

[0012] As a preferred solution, the substrate is made of graphite material.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the large-capacity vacuum eutectic furnace cavity assembly provided by the present utility model, by arranging the connection structure of the heating lamp tube and the cooling pipe outside the cavity, the heating and cooling spaces inside the cavity can be relatively increased, thereby improving the heat conduction or heat dissipation effect. At the same time, the area of the substrate is correspondingly increased, which can effectively improve the welding production capacity. In the heating mechanism, by setting the cooperation structure of the infrared lamp tube and the sheath, the connection sealing performance with the outer shell can be ensured while ensuring the heating effect. Description of the Drawings

[0014] Figure 1 It is the top view of the large-capacity vacuum eutectic furnace cavity assembly in the embodiment of the present utility model;

[0015] Figure 2 It is Figure 1 the cross-sectional view in the direction of A-A;

[0016] Figure 3 It is the structural schematic diagram of the substrate in the embodiment of the present utility model;

[0017] Figure 4 It is the left view of the large-capacity vacuum eutectic furnace cavity assembly in the embodiment of the present utility model;

[0018] Figure 5 It is Figure 4 the cross-sectional view in the direction of B-B;

[0019] Figure 6 It is the structural schematic diagram of the cooperation between the cooling pipe and the support rib plate in the embodiment of the present utility model.

[0020] The meanings of the various reference numerals in the figure are as follows:

[0021] 1. Outer shell; 2. Substrate; 3. Heating lamp tube; 4. Cooling tube; 5. Installation channel; 6. Connecting pipeline; 7. Support rib plate; 8. Sheath; 9. Sealed connection seat; 10. Support card; 11. Gasket; 12. Connecting ferrule; 13. Threaded interface. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] See Figures 1 - 6 , this embodiment discloses a large-capacity vacuum eutectic furnace cavity assembly, including a cavity surrounded by an outer shell 1. A cover body is connected to the top end of the outer shell 1, and the cover body and the outer shell 1 cooperate to form a sealed cavity of the vacuum eutectic furnace.

[0025] See Figure 1 , Figure 2 , inside the cavity, there is a substrate 2 for carrying the product to be welded and a heating mechanism and a cooling mechanism for heating and cooling the substrate 2. The heating mechanism includes a plurality of groups of heating lamp tubes 3 arranged at intervals along the length or width direction of the cavity, and the cooling mechanism includes a plurality of cooling tubes 4 parallel to the heating lamp tubes 3, and the cooling tubes 4 and the heating lamp tubes 3 are staggered.

[0026] In this embodiment, both the heating lamp tube 3 and the cooling tube 4 pass out of the cavity and are respectively connected to the outer shell 1 through a connecting structure. Specifically, see Figure 4 , Figure 5, the heating mechanism further includes a first connecting member for connecting the heating lamp tube 3 to the outer housing 1. The first connecting member is arranged outside the cavity, and the heating lamp tube 3 is fixedly connected to the outer housing 1 through the first connecting member. The cooling mechanism further includes a second connecting member for connecting the cooling tube 4 to the outer housing 1. The second connecting member is arranged outside the cavity, and the cooling tube 4 is fixedly connected to the outer housing 1 through the second connecting member. In this embodiment, by arranging the heating lamp tube 3 and the cooling tube 4 to pass through the outer housing 1 and arranging the relevant connection structures outside the cavity, the heating and cooling spaces inside the cavity can be relatively increased, the available space for the heating lamp tube 3 and the cooling tube 4 can be enlarged, thereby improving the heat conduction or heat dissipation effect. Correspondingly, the substrate 2 can also be set with an increased area according to the space of the heating lamp tube 3 and the cooling tube 4, thereby effectively improving the welding productivity.

[0027] The substrate 2 can be made of graphite or metal. The thermal conductivity of graphite is better than that of metal, and the expansibility is small. The substrate 2 is preferably made of graphite.

[0028] Combined Figure 3 , to further improve the heat dissipation effect, in this embodiment, a plurality of installation channels 5 matching the cooling tube 4 are provided inside the substrate 2. The cooling tube 4 is inserted into the installation channels 5, and both ends respectively pass out of the installation channels 5. By arranging the cooling tube 4 in a fully enclosed manner through the installation channels 5 of the substrate 2, all the cold quantity of the cooling tube 4 can be absorbed by the substrate 2. At the same time, by comprehensively wrapping the cooling tube 4 through the installation channels 5, the cooling tube 4 can also be prevented from deforming due to high and low temperatures. To facilitate the conduction of each cooling tube 4, the cooling mechanism further includes a connecting pipeline 6 for connecting the cooling tubes 4. The connecting pipeline 6 is arranged in a U shape and is connected to the cooling tube 4 through a threaded interface 13. The connecting pipeline 6 and the cooling tube 4 are conducted to form a cooling path. To improve the uniformity of the cooling effect, in this embodiment, the cooling path is set to two groups. The two groups of cooling paths can be set to diffuse refrigeration from the middle area of the substrate 2 to both sides respectively, or can be set to an interleaved refrigeration with the inlet end and the outlet end distributed in the reverse direction.

[0029] See Figure 6 , in other embodiments, considering the convenience of disassembly and assembly, the installation channel 5 can also be configured as an arc-shaped groove at the bottom of the substrate 2. The arc-shaped groove matches the cooling tube 4, and the cooling tube 4 is arranged in the arc-shaped groove. The arc-shaped groove forms a semi-enclosed wrapping of the cooling tube 4. In this embodiment, to prevent the cooling tube 4 from deforming and affecting the heat dissipation effect, the cooling mechanism further includes a support rib plate 7 abutted against the lower part of the cooling tube 4. Both ends of the support rib plate 7 are connected to the outer housing 1, and can be detachably connected to the outer housing 1 through bolts, or can be fixedly connected to the outer housing 1 by welding or other means. The top end of the support rib plate 7 is set to an arc-shaped structure matching the lower part of the cooling tube 4, so that it can be closely attached to the cooling tube 4.

[0030] It should be noted that when the substrate 2 is made of a metal material, the fully enclosed installation channel 5 can also be directly used as the cooling channel for introducing the cooling medium, and the heat conduction effect is relatively excellent. However, for this application method, the sealing connection between the cooling channel interface of the substrate 2 and the outer shell 1 needs to be well done to avoid leakage of the cooling medium or affecting the vacuum degree of the cavity.

[0031] See Figure 2 and Figure 4 , in this embodiment, the heating lamp tube 3 is an infrared lamp tube, which is arranged below the substrate 2 and provides heat energy for the substrate 2 through the non-contact heating method of infrared radiation. In actual applications, since the infrared lamp tube has a very high temperature, it is difficult to seal with the outer shell 1, and the infrared lamp tube body is difficult to withstand mechanical pressure. Therefore, in this embodiment, the heating mechanism further includes a sheath 8 sleeved outside the infrared lamp tube, and the sheath 8 is made of quartz material. Specifically, the sheath 8 and the infrared lamp tube jointly pass through the outer shell 1. The aforementioned first connecting member includes a sealing connection seat 9 for sealingly connecting the sheath 8 to the outer shell 1 and a support clip 10 for supporting the infrared lamp tube. The support clip 10 is connected to the sealing connection seat 9 by screws. The second connecting member for fixedly connecting the cooling tube 4 to the outer shell 1 includes a gasket 11 and a connecting ferrule 12.

[0032] For the large-capacity vacuum eutectic furnace cavity assembly provided by the present utility model, by arranging the connection structures of the heating lamp tube 3 and the cooling tube 4 outside the cavity, the heating and cooling spaces inside the cavity can be relatively increased, thereby improving the heat conduction or heat conduction effect. At the same time, the area of the substrate 2 is correspondingly increased, which can effectively improve the welding production capacity. In the heating mechanism, by setting the cooperation structure of the infrared lamp tube and the sheath 8, the connection sealing performance with the outer shell 1 can be ensured while ensuring the heating effect.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large-capacity vacuum eutectic furnace chamber assembly, characterized in that: include, A cavity enclosed by the outer shell (1); A substrate (2) disposed in the cavity; A heating mechanism for heating a substrate (2), comprising a plurality of groups of heating lamps (3) arranged at intervals along the length or width direction of a cavity, and a sheath (8) sleeved outside the heating lamps (3), wherein the sheath (8) and the heating lamps (3) pass through an outer shell (1) and are connected to the outer shell (1) via a first connecting member; A cooling mechanism for cooling a substrate (2) comprises a plurality of cooling tubes (4) parallel to a heating lamp tube (3); the cooling tubes (4) pass through an outer shell (1) and are connected to the outer shell (1) via a second connecting member.

2. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: A plurality of installation channels (5) matching the cooling tubes (4) are arranged inside the base plate (2), and the cooling tubes (4) are passed through the installation channels (5).

3. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: The cooling mechanism also includes a connecting pipe (6) for connecting with the cooling pipe (4); the connecting pipe (6) and the cooling pipe (4) are connected to form a cooling passage.

4. The volumetric vacuum eutectic furnace chamber assembly according to claim 3, characterized in that: The cooling passages are arranged in two groups for uniform cooling effect.

5. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: The bottom of the base plate (2) is provided with a plurality of arc-shaped grooves matching the cooling tubes (4), and the cooling tubes (4) are arranged in the arc-shaped grooves.

6. The volumetric vacuum eutectic furnace chamber assembly according to claim 5, characterized in that: The cooling mechanism further comprises a supporting rib plate (7) abutting against the bottom of the cooling pipe (4), and both ends of the supporting rib plate (7) are connected to the outer shell (1).

7. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: The first connecting member comprises a sealing connection seat (9) for connecting the sheath (8) to the outer shell (1) and a supporting card (10) for supporting the infrared lamp tube, wherein the supporting card (10) is connected to the sealing connection seat (9).

8. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: The sheath (8) is made of quartz material.

9. The volumetric vacuum eutectic furnace chamber assembly according to claim 1, characterized in that: The substrate (2) is made of graphite.

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